Ground floor slabs with Steel Fibre in Industrial(Industrial Flooring), Warehouses and Distribution Centres are integral to the effi- cient operation of the facility. They are the  table top on which an operator runs his business. On the surface they appear to be one of the simplest parts of a structure to construct. However, this simplicity often leads to an underestimation of the design and construction requirements. A well designed and constructed floor will increase productivity, reduce maintenance of the building and increase the life of the equip- ment using the floor.

Steel fibre reinforced concrete has emerged as an alternate to traditional mesh reinforcement. Which offers benefits like

–reinforcement throughout the full depth offering excellent crack control

–Increase in load bearing capacity  Free Movement Floor (FM 2- TR 34)

–The ductile Steel Fibre Floor with stands moderate deformations, minimizes curling of concretes lab.

–Easier and more accurate installation  of Superflat floor.

High Tolerance is the term referring to surface regularity. Surface regularity needs to be limited in two ways. The floor should have an appropriate flatness in order to limit the bumpiness and general stability in operation of the materials han- dling equipment, and an appropriate lev- elness to ensure that the building as a whole with all its static and mobile equip- ment can function satisfactorily. There are essentially two methods for defining floor flatness requirements. Floors are divided into Free Movement Areas (FM) and Defined Movement Areas(DM).

TR34 Classification FM2 is recommended when specifying a new floor as this represents a good quality floor that can be achieved without excessive cost. For VNA applications a DM Specification (Superflat floor) should be used and the category is defined by the racking height. It is feared that steel fibres will stand out on surface, being a multi dimensional reinforcement and can be a hindrance in achieving high tolerance surface finish. Contrary to this,we would like to sight fol- lowing two examples off inetolerance floors with higher fibre dosage executed by us in recent past.

a) Superflat floor for M/s. Wacker Metroerk Chemicals at Kolkata for an areaof2137M2 with steel fibre dosage of 20 Kg/m3 as per international stan- dardsof TR-34.

b) Joint Less Floor for an area of 7500m2 and panel size of 30X 24 M for M/s. Knorr Bremse with steel fibre dosage of 30 Kg/m3 FM2 category as per international standards of TR-34.